Add the highlighted code on line #5. Create a button object and reference the button we placed on our layout. After you add the following line of code you will get an error. This is because you need to import "android.widget.Button". The fastest way to import is the hotkey Ctrl-SHIFT-O. This will add all missing imports.

Apparently, in the version im using, the second @override makes the program not work, and if its omited, it works! idk why because im just starting, but thats just a tip to others who cant get it to work

Hey Greg, even Im getting the same problem as of Anu's. Were you able to resolve her problem??After a long wait it says...Process android.process.media is not responding... HELP!!!Please mail me on rishabmathur@gmail.com

Its running fine now except I am having the same issue as anu. It loads the homescreen fine but there is no button to click and there is no way to access the application. Any ideas what might be going wrong.

I get a warning 'This application, or a library it uses, is using NSQuickDrawView, which has been deprecated. Apps should cease use of QuickDraw and move to Quartz.'

But googling that seems to suggest that it can be ignored and does not affect the application.

I've enjoyed your tutorials to this point, it seemed like everything was going to smooth. I've followed both tutorials 1)How to set up ... and also2)Hello World Everything looks identical but when I run HelloWorld I get "Conversion to Dalvik format failed"Location is unknown Type is Android Packaging Problem.Any help available?

hi,i am new in android developers,i had done my own programme, in which i include 1 button, 1 text, 1 edit box, but i got 1 error "OnClickListner cannot be resolve to a type".i also post my code package com.msi.manning.unlockingandroid;

I'm a newbie in this programming. I'm trying to learn about Android SDK and i'm learning through tutorials in the SDK website. The problem is, i'm having trouble opening xml files in Eclipse. When i double click the xml, the software will either crash or stopped responding.

I'm afraid mine might be a bonehead problem. I have created your Hello World app in Eclipse Galileo, and have run it successfully on the Android emulator in Eclipse. I am trying to deploy .apk to my Nexus 1. In your response to Michno, you said "...deploy directly to your phone over a USB cable." Sounds good but is not working for me. I have connected my Nexus 1 with a USB, and am using the webshare app to move the .apk file from my PC (Win 7 x86 OS) to the nexus. Though WebShare tells me the .apk transferred successfully, I can't find it on the Nexus. Also, I'm getting an error message on the PC saying that there is no disk where the nexus is supposed to be. What am I doing wrong? Any help or links or suggestions are welcome.

Great tutorial, thanks. I'm struggling with getting the Android SDK to create AVDs. Each time I try, the SDK locks up with a "not responding" message. Once I get that to clear, I can see the following details on the AVD that I tried to create:Name: Android2.1Path: C:\Users\Bob\.android\avd\Android2.1Error: Failed to parse properties from c:\Users\Bob\.android\avd\Android2.1

Well, I figured out why I was having problems with the Android SDK. I have a 4 year old laptop that doesn't have a very fast processor - its an AMD Turion 64 X2. So I was waiting for 10-15 minutes for this thing to finish - would get the "not responding" message. I thought the thing had failed - but yesterday I looked at the Task Manager and could see that the SDK process was still cranking away. So 25 minutes later, it finished and I got my Android2.1 Virtual Device. Had similar issues today with running HelloWorld - took a really long time to set up, and I got error messages along the way, but once it finished, the app was loaded and it worked. So I'll be springing for something like an i7 Intel laptop in the fairly near future. Thanks again for the great tutorial - would have been difficult to get set up without it.

I need some help and I need it file. I need a app that would read a text file from the SDCARD which has phone numbers and text everyone in the file the same message as a click on the button .. can someone please help

worked for me. had to change the 'Button01' to 'button1' and remove that line 18 @override, but given the speed of releases of both android and eclipse, i was very impressed that I got it up and running in under twenty minutes. Thanks Greg

Hi Greg,Im having trouble with the new project creation part. Everytime i go on to click the Finish button i get an error saying: "E:\\android-sdk-windows\tools\lib\proguard.cfg (The system cannot find the file specified)." Plz help as im new to the environment. Im using Win7 + eclipse IDE(v3.6 helios).-Harshdeep

Hi all,In the following code "setContentView(R.layout.main);" I am getting an error "R cannot be resolved to a variable"When i import the class android.R this is resolved but it is giving a error "main cannot be resolved or it is not a field " i am very new to this android dev, kindly advice me in this

This @foo problem is because of the SDK location. I had a long path for program files which caused this issue. Some suggested to use ~ for the directory having space. That seems to work. I installed SDK in a direction "Android" and it worked perfect.

If you are experiencing an error with an @override for onClick (line 18) you can correct this by right clicking on your project and select "Java Compiler" and setting it 1.6. You probably are on 1.5. That should correct your override errors.

The Words "Hello World" appear in my application.Where is this text coming from, it isn't in the main.xml, it isn't in the java source file. Is it something I can edit ? or do all android applications have to say "Hello World", I have only been programming for 20 years, so perhaps modifying the "Hello World" text is beyond me... maybe I shouldn't be tinkering with the hidden "Hello World" string that is embedded deep in a secret file that is part of every project, but can't be found or edited.

I ran your code and it worked, I received a popup message hello world. Your issue must be somewhere else. If you email me the entire project folder zipped I can take a look. Also you can download my complete example and run it and see if it works for you, then compare the two projects.

First off a very big Thank You for your pages here! They are a great confidence builder for new Android developers.

I ran into one problem that prevented me from getting the app to run on Eclipse 3.72 with the latest Android SDK and Java JDK on Win7. I nearly posted asking for help and I was able to fix it myself.

Your main.xml example at the top has linearlayout and button markers. That caused Eclipse to crash just starting the app. When I changed them to LinearLayout and Button (both mixed case, not lower case) the problem went away.

I found that when I used lower case for both the sample app would not even run. It died with:

I am unable to get the option Android project in Eclipse Indigo. I downloaded 752 mb android sdk folder, it has android 1.5 to 3.0. I even downloaded Android plugin in Eclipse. But still it is not showing Android project. What should I do?

Well if anyone is ultranoob at this like me and wanna not lose a couple hours of your life like i did, watch your capitalization. I had the superclass prob, changed from 1.5/1.6 several times, hit clean, etc and perused several websites finally i found and fixed ityped OnCreate and changed it to onCreate, life was good after that....im doing the tut on android website btw but may switch to this site, this sites better it has more descriptive steps and user feedback

hi every one am new in android development and i get an error which says unreachable code on button1 underlined red Button clear=(Button)findViewById(R.id.button1); and the following lines it doesn't say anything.help me what is the problem.

heyyy hi Allcan you guys help me regarding source codde of 'android web browser' that can be run as an application using monkey talk,, i a am done with the hello world project and its recording the script..please provide me a zip file similar to the hello world. I shall be very thankful to you. i have tried few from internet, but there are so many errors during the run , so the smulator is not opening.Please help.Regards Pawan

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